import React from 'react';
import ReactDOM from 'react-dom';
// import App from "./day2/App";
// import App from "./day2/App2";
// import App from './day2/受控组件'
// import  App from './day2/父子传递'
import App from './day2/父子传递2'





// ReactDOM.render(<App />,document.getElementById('root'))
ReactDOM.render(<App />,document.getElementById('root'))